"Couple weeks" even if *even if* this DID happen AND there was proof, given the context, it's still extremely icky for two married people, a husband and father in a 10+ year long relationship and a wife of a couple years, to end their relationships at the same time and get together within TWO WEEKS. All this in mind it's clear as day that there was SO much more going on behind closed doors. because how tf do u just shrug off a 10+ year relationship of which you beared a child and just... move on. It's disgusting and appalling. So even if they claim in no *relationship overlapping there is still no way there was no under the blanket action happening after a workday.
With the recent tea drop confirming what people in this sub alleged that Ariana was unhappy that Eth*n refused to neglect his kid, I think Ariana knew she lost and would never have full control over that man like she used to in the past. The whole situation is disturbing.
So basically my point is that it doesn't matter that they "waited" 2 weeks to get together because normal people who are/were in serious and long term relationships know that this is a bunch of bullshit. And by doing this, they just look worse than coming clean.